CN106843122A - Programmable Logic Controller - Google Patents

Programmable Logic Controller Download PDF

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Publication number
CN106843122A
CN106843122A CN201610865359.4A CN201610865359A CN106843122A CN 106843122 A CN106843122 A CN 106843122A CN 201610865359 A CN201610865359 A CN 201610865359A CN 106843122 A CN106843122 A CN 106843122A
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China
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mentioned
module
communication
pin
end side
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Granted
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CN201610865359.4A
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CN106843122B (en
Inventor
金田知久
坪井泰宪
加藤豪俊
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JTEKT Corp
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JTEKT Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/185—Mounting of expansion boards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/188—Mounting of power supply units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/189—Power distribution
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G05B2219/1137—Peer to peer communication
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14007—Plc as standalone for safety control of machine

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

The present invention relates to Programmable Logic Controller.It is provided with past road switch (Da, Db), this is toward road switch (Da, communications patching (Acd and Ade in Shi Wang roads in the case of module (24) Db) is installed in connector (16D), and Bcd and Bde) electrically disconnected, and communications patching (Acd and Ade in Shi Wang roads in the case of being not installed with module in connector, and Bcd and Bde) electrical short, and it is provided with loop switch device (Dc, Dd), the loop switch device (Dc, Dd circuit communication distribution (Cde and Ccd is made in the case of module) is installed in connector, and Dde and Dcd) electrically disconnected, and make circuit communication distribution (Cde and Ccd in the case of being not installed with module in connector, and Dde and Dcd) electrical short.

Description

Programmable Logic Controller
Technical field
The present invention relates to the Programmable Logic Controller with base unit and module, the base unit is from first end one lateral Two ends side are set with the slot in multiple spaces as installing module, and the module is installed in slot.
Background technology
Programmable Logic Controller is so-called Programmable Logic Controller (PLC), is according to prespecified Order or program, the control device in each stage being controlled successively.It is promising for example around the lathe of processing workpiece Ensure the safety of staff and the safety door that will isolate between lathe and staff is set, depart slightly from the safety door Position on set and indicate lathe to proceed by the processing start button of processing, and set urgent on the side of processing start button The situation of stop button.In addition, have the limit switch for setting that detection door is open mode or closed mode on safety door, and The situation of the sensor of the regulation of detection process finishing is set on lathe.
In this case, the signal from limit switch, from processing start button signal, from emergency stop push button The signal of signal and the sensor from regulation is input to Programmable Logic Controller, and makes machine from Programmable Logic Controller output The action that the action of bed starts starts control signal and the action that the action of lathe stops is stopped control signal.And, only exist In the case that Programmable Logic Controller detects prespecified order (for example safety door closing after, detect processing start by The situation that button is connected), each stage being controlled (for example starts the action of lathe, lathe is made if process finishing is detected Action stop).In addition, such as Programmable Logic Controller is being detected in the case that emergency stop push button is pressed or detected Go out safety door as in the case of open mode, in the case that lathe works, forcibly stop lathe.
Such as Programmable Logic Controller is arranged in correspondence with various factories with various lathes, according to set lathe and should Various buttons, various safety doors, various orders around lathe etc., one by one as different compositions.For example shown in Figure 15 Conventional Programmable Logic Controller 101 is by base unit 110 and various module compositions, and the base unit 110 is lateral from first end one Second end side is set with the slot in multiple spaces as installing module, and the module is arranged on base in removably mode In the slot of seat unit 110.Module has various species, for example, have power module 121, CPU module 122, communication module 124, defeated Enter module 125, output module 126 etc..
In fig .15, such as power module 121 is the mould to each module supply electric power being installed in base unit 110 Block, communication module 124 is the module for being communicated with other equipment using such as LAN.In addition, such as input module 125 is the module that various buttons, switch etc. are input into input signal, and output module 126 is the module for exporting various control signals.And And, CPU module 122 judges the order of regulation according to the program carried and according to the input signal from input module 125 Deng, and via the output control signal of output module 126.Required for Programmable Logic Controller 101 is selected according to the environment for being used Module, the module selected with removably mode be arranged on base unit 110 slot in.And, the order of defined, With detect that each stage of control in the case of the order etc. is programmed and is equipped on CPU module 122.
In addition, in fig .15, base unit 110 has the power supply from power module 121 extremely in each slot The slot that the distribution of the communication of the distribution, intermodule of each module is chimeric with the modular connector being arranged in each module is connected Device.It is chimeric with the connector by modular connector, so that module is installed on base unit 110 in removably mode Slot.
Programmable Logic Controller typically installs power module in the slot of the first end of base unit, adjacent with power module CPU module is installed in the slot of the second end side for connecing, from the slot of the second end side abutted with CPU module, is not provided with Empty slot ground is installed by communication module, input module, output module.In the past, including including CPU module and being installed on and comparing CPU module Near the module of the second end side (equivalent to communication zone), adjacent module enters the reception and transmission of row information each other.
As shown in figure 15, in conventional Programmable Logic Controller 101, power module 121 is arranged on the slot of first end In, in communication zone 120, CPU module 122 is installed in first end.And, in communication zone 120, from the court of CPU module 122 To the direction (in this case, Y direction) at the second end, communication module 124, input module 125, defeated is installed with being not provided with sky slot Go out module 126 etc..Programmable Logic Controller 101 is carried out in the communication zone 120 toward road communication and circuit communication, this toward road communicate from Letter is transmitted in order to the second end side (in this case, output module 126) in first end side (in this case, CPU module 122) Breath, the circuit communication is from the second end side (in this case, output module 126) to first end side (in this case, CPU module 122) information is transmitted in order.
In the conventional Programmable Logic Controller 101 shown in Figure 15, for toward road communication, from CPU module 122 to logical Letter module 124 transmission information [1-1] communication, from communication module 124 to input module 125 transmit information [1-2] communication, And [1-3] communication of transmission information meets from input module 125 to output module 126.In addition, conventional shown in Figure 15 Programmable Logic Controller 101 in, for circuit communication, from output module 126 to input module 125 transmit information [2- 1] communicate, [2-2] communication of information transmitted from input module 125 to communication module 124 and from communication module 124 to CPU [2-3] communication of the transmission information of module 122 meets.
In the past, for example shown in Figure 16, in communication zone 120, if being set between input module 125 and output module 126 Empty slot is put, the communication of Ze Wang roads is communicated and from communication from [1-1] that information is transmitted from CPU module 122 to communication module 124 Module 124 communicates to [1-2] of the transmission information of input module 125 and completes, without carrying out from input module 125 to output module 126 toward road communication (because can not find the communication object of input module 125 in [1-3] communication).In addition, circuit communication by [2-1] communication of information is transmitted from input module 125 to communication module 124 and is passed to CPU module 122 from communication module 124 Deliver letters breath [2-2] communication complete, without carrying out the circuit communication from output module 126 to input module 125.Therefore, with It is past, not fill up the in the way of intermodule sets sky slot in the communication zone 120, it is necessary to as shown in the example of Figure 15 Module is installed to one end side (in this case, left side).
A kind of peace in the multiple slots for be arranged at motherboard is for example disclosed in Japanese Unexamined Patent Publication 2002-62908 publications Die-filling piece, and the Programmable Logic Controller transmitted with the data that ring bus mode carries out intermodule.The Programmable Logic Controller is in mother It is provided for getting around the bypass mechanism of ring bus on the connector of the specified quantity of plate (equivalent to base unit), and is inserted in sky Ring bus is got around in groove using bypass mechanism such that it is able to by ring bus mode and the front end for being arranged on empty slot Module is communicated.
In the Programmable Logic Controller described in Japanese Unexamined Patent Publication 2002-62908 publications, because the annular for passing through ring-type Bus is linked in sequence each module, so for example in the case of the communication from main mould BOB(beginning of block), from primary module to ring-type The adjacent module of ring bus connection transmits information in order.And, it is last from this after to last module transmission information Module to primary module transmit information (because each module is linked in sequence by the ring bus of ring-type).Therefore, information is transmitted Direction be one-way trip, it is impossible to be in statu quo applied to above-mentioned with toward road communication and the communication of circuit communication.
The content of the invention
It is an object of the present invention to provide a kind of carried out toward the Programmable Logic Controller of road communication and circuit communication, i.e., Make in the case where adjacent intermodule is formed and is free slot, it is also possible to performed toward road communication and circuit communication in each intermodule Programmable Logic Controller.
Programmable Logic Controller as a mode of the invention has：Base unit, from lateral second end one of first end one Side is set with the slot in multiple spaces as installing module；And module, it is installed in above-mentioned slot.
Be provided with each above-mentioned slot be arranged on above-mentioned module in the chimeric connector of modular connector, And above-mentioned module is installed in above-mentioned slot by the way that above-mentioned modular connector is chimeric with above-mentioned connector, above-mentioned module tool There are primary module and secondary module, the primary module includes starting the work(from itself to the communication of other above-mentioned modules according to regulation opportunity Can, the secondary module includes receiving information by communication carrying out the function of the communication to other above-mentioned modules, including the comunication area Most by installing above-mentioned primary module in the single or multiple above-mentioned slot of the above-mentioned slot of first end side in domain, the communication zone It is the region of the multiple above-mentioned slot for including being provided with the above-mentioned module for carrying out above-mentioned communication, in above-mentioned communication zone internal ratio The above-mentioned slot of above-mentioned primary module is installed to be close at least one of the multiple above-mentioned slot of the second end side above-mentioned slot Above-mentioned secondary module is installed.
In addition, above-mentioned communication You Wang roads communication and circuit communication, this communicates from above-mentioned main mould BOB(beginning of block) toward road, from first end The above-mentioned module of side transmits above- mentioned information in order to the above-mentioned module of the second end side, and the circuit communication is mounted in and most leans on The above-mentioned secondary module at the second end side be the second end module by it is above-mentioned communicated toward road receive above- mentioned information after, from above-mentioned second End module starts, and states primary module on the side from the second end one and transmits above- mentioned information in order, installed in most by the second end side The above- mentioned information that above-mentioned secondary module will be received by the above-mentioned above-mentioned module communicated from first end side toward road is by above-mentioned past Road communicates and is detected when attempting transmission to the above-mentioned module of the second end side and do not install above-mentioned module in the second end side and recognize For above-mentioned secondary module itself is above-mentioned second end module.And, it is provided with said base unit toward road communications patching and is returned Road communications patching, this is used for the first end one in above-mentioned connector adjacent in above-mentioned communication zone toward road communications patching The above-mentioned connector connection of the above-mentioned connector of side and the second end side is above-mentioned toward road communication to carry out, and the loop leads to Letter distribution is used for the above-mentioned connector of the second end side in above-mentioned connector adjacent in above-mentioned communication zone Above-mentioned circuit communication is carried out with the above-mentioned connector connection of first end side.Also, inserting in above-mentioned communication zone Groove and the i.e. middle slot of the above-mentioned slot in addition to being provided with the above-mentioned slot of above-mentioned primary module and the above-mentioned slot at the second end In, be provided with toward road switch and loop switch device in the vicinity of each above-mentioned connector, it is above-mentioned toward road switch upper State in the case of above-mentioned module is installed in slot, make the above-mentioned toward road communications patching and above-mentioned second end of above-mentioned first end side The above-mentioned past road communications patching of side is electrically disconnected, and in the case of not installing above-mentioned module in above-mentioned slot, makes above-mentioned first The above-mentioned past road communications patching of end side and the above-mentioned past road communications patching electrical short of above-mentioned second end side.In addition, above-mentioned time In the case that road switch is provided with above-mentioned module in above-mentioned slot, make the above-mentioned circuit communication distribution of above-mentioned second end side Above-mentioned circuit communication distribution with above-mentioned first end side is electrically disconnected, and the situation of above-mentioned module is not installed in above-mentioned slot Under, make the above-mentioned circuit communication wired electric of the above-mentioned circuit communication distribution of above-mentioned second end side and above-mentioned first end side short Road.
According to the Programmable Logic Controller as aforesaid way, the Programmable Logic Controller toward road communication and circuit communication is being carried out In be provided with toward road switch and loop switch device.Module is not installed in connector corresponding with itself toward road switch In the case of, make the past road communications patching short circuit of the past road communications patching of first end side and the second end side, so that past road Communication gets around.In addition, in the case that loop switch device does not install module in connector corresponding with itself, making the second end The circuit communication distribution short circuit of the circuit communication distribution and first end side of side, so that circuit communication gets around.Thus, even if In the case where adjacent intermodule is formed and is free slot, it is also possible to performed toward road communication and circuit communication in each intermodule.
In the Programmable Logic Controller of aforesaid way, in above-mentioned middle slot, each above-mentioned connector has many Individual pin, with being itself mounted at first end side and nearest with relative to above-mentioned connector in the above-mentioned communication toward road The communication of above-mentioned module used toward road receive pin, it is above-mentioned toward road communication in relative to above-mentioned connector itself Communication installed in the second end side and nearest above-mentioned module used toward road pay pin, in above-mentioned circuit communication with The loop that the communication for being itself mounted at the second end side and nearest above-mentioned module relative to above-mentioned connector is used connects First end side and nearest is itself mounted at relative to above-mentioned connector by pin and in above-mentioned circuit communication Pay pin in the loop that the communication of above-mentioned module is used.
Most inserted by the above-mentioned of the second end side in the above-mentioned slot for be provided with above-mentioned primary module in above-mentioned communication zone The above-mentioned connector of groove has multiple pins, receives pin toward road payment pin and above-mentioned loop with above-mentioned, above-mentioned In communication zone, the above-mentioned connector of the above-mentioned slot at the second end has multiple pins, and pin is received toward road with above-mentioned Pin is paid with above-mentioned loop.
In addition, receive to be connected with the above-mentioned toward road communications patching of first end side on pin toward road above-mentioned, above-mentioned past Road is paid and the above-mentioned toward road communications patching of the second end side is connected with pin, receives to be connected with second on pin in above-mentioned loop The above-mentioned circuit communication distribution of side is held, the above-mentioned circuit communication that first end side is connected with above-mentioned loop payment pin is matched somebody with somebody Line.And, it is above-mentioned to receive pin toward road and above-mentioned toward the connection of road payment pin and in above-mentioned slot with above-mentioned toward road switch In above-mentioned module is installed in the case of, make it is above-mentioned toward road receive pin and it is above-mentioned to pay pin toward road electrically disconnected, and above-mentioned In the case that slot does not install above-mentioned module, above-mentioned past road is set to receive pin and above-mentioned toward road payment pin electrical short.In addition, on State loop switch device and pay pin connection and be provided with above-mentioned slot receiving pin and above-mentioned loop with above-mentioned loop In the case of stating module, above-mentioned loop is received pin and above-mentioned loop, to pay pin electrically disconnected, and does not pacify in above-mentioned slot Load onto in the case of stating module, above-mentioned loop is received pin and above-mentioned loop payment pin electrical short.
According to the Programmable Logic Controller of aforesaid way, do not installed in connector corresponding with itself toward road switch In the case of module, Shi Wang roads receive pin and pay pin short circuit toward road, so that being got around toward road communication.In addition, loop is cut In the case that parallel operation does not install module in connector corresponding with itself, loop is set to receive pin and loop payment pin Short circuit, so that circuit communication gets around.Thus, even if in the case where adjacent intermodule is formed and is free slot, it is also possible to Each intermodule is performed toward road communication and circuit communication.
In the Programmable Logic Controller of aforesaid way, above-mentioned past road switch is to allow hand over off-state and short-circuit condition Past path switching circuit, above-mentioned loop switch device is the circuit switching circuit for allowing hand over off-state and short-circuit condition, above-mentioned Power supply is fed with from said base unit respectively toward path switching circuit and above-mentioned circuit switching circuit, corresponding with itself above-mentioned Slot is input into switching signal in the case of being provided with above-mentioned module from mounted above-mentioned module, and corresponding with itself above-mentioned Slot is not input into above-mentioned switching signal in the case of not installing above-mentioned module.And, it is above-mentioned toward path switching circuit and above-mentioned loop On-off circuit makes distribution or pin as object electrically disconnected in the case where above-mentioned switching signal is transfused to, and not by In the case of being input into above-mentioned switching signal, make as the distribution or pin electrical short of object.
According to the Programmable Logic Controller of aforesaid way, specifically and can be appropriately carried out toward road switch and loop switch Device.
In the Programmable Logic Controller of aforesaid way, it is above-mentioned toward path switching circuit, above-mentioned circuit switching circuit and it is above-mentioned insert Groove connector is installed in and is arranged on the tellite of said base unit, each it is above-mentioned toward road communications patching and each Above-mentioned circuit communication distribution is linearly set on above-mentioned tellite.And, it is above-mentioned to be pacified toward path switching circuit Being communicated with the face of above-mentioned connector opposition side and the above-mentioned past road of first end side in above-mentioned tellite Between distribution and the above-mentioned communications patching toward road of the second end side, above-mentioned circuit switching circuit is installed in above-mentioned printed circuit base Above-mentioned circuit communication distribution with the face of above-mentioned connector opposition side and the second end side and first end side in plate Between above-mentioned circuit communication distribution.
According to the Programmable Logic Controller of aforesaid way, it is capable of the communication path and the communication lines of circuit communication of the communication of Shi Wang roads Footpath respectively becomes linearly, further, it is possible to nearly equal length.In situation, the length of communications patching arranged side by side of communications patching bending In the case of difference, the reflection of signal is easily produced, and easily become the key factor of noise.By will be as making communications patching The on-off circuit of the key factor of bending is configured in the face of the opposition side of tellite, can be simply completed communications patching Linearization(-sation).Therefore, it is possible to be not easily susceptible to the influence of noise, and the communication of reliability Geng Gaowang roads can be carried out and loop is logical Letter.It is especially effective to being compared the situation of the communication of high speed.
Brief description of the drawings
By being described to embodiments of the present invention referring to the drawings, above and other feature of the invention and excellent Point can become more fully apparent, wherein, reference represents key element of the invention, wherein:
Fig. 1 is the stereogram illustrated to the structure of base unit and the example of outward appearance.
Fig. 2 is the top view illustrated to the structure of base unit and the example of outward appearance.
Fig. 3 is the stereogram illustrated to the example of the outward appearance of the example and each module of the species of module.
Fig. 4 is the stereogram illustrated to the example of the inboard outward appearance of each module relative to Fig. 3.
Fig. 5 is to installing power module, CPU module, communication module, input module, output module on base unit The stereogram that appearance is illustrated.
Fig. 6 is to the pin of the connector on tellite, is arranged on tellite Toward the stereogram that the example of road communications patching and circuit communication distribution is illustrated.
Fig. 7 is to the pin of the connector on tellite, is arranged on tellite Toward the top view that the example of road communications patching and circuit communication distribution is illustrated.
The figure that Tu8Shi Duiwang roads switch and loop switch device, allocation position and connection example is illustrated.
Fig. 9 be to being provided with module in slot in the case of, turn into off-state toward road switch and loop switch device The figure that illustrates of appearance.
Figure 10 be to not installing module in slot in the case of, turn into short-circuit condition toward road switch and loop switch device The figure that illustrates of appearance.
Figure 11 is in the Programmable Logic Controller of embodiment of the present invention, sky slot ground being not provided with adjacent intermodule The figure that example in the case of composition installation communication module group, toward road communication and circuit communication is illustrated.
Figure 12 is in the Programmable Logic Controller of embodiment of the present invention, in adjacent intermodule with empty slot Mode is constituted installs the figure that illustrates of example in the case of communication module group, toward road communication and circuit communication.
Figure 13 be use in fig. 11 the internal structure of input module, the internal structure of output module, toward road communications patching, The schematic diagram that circuit communication distribution is illustrated to illustrate to be communicated toward road with the example of the detection of the second end module.
Figure 14 be use in Figure 11 the internal structure of input module, the internal structure of output module, toward road communications patching, return Road communications patching illustrates the schematic diagram of the example of the circuit communication since the second end module for detecting.
Figure 15 is to constituting installation while sky slot in conventional Programmable Logic Controller, is not provided with adjacent intermodule The figure that example in the case of communication module group, toward road communication and circuit communication is illustrated.
Figure 16 is in conventional Programmable Logic Controller, peace being constituted in the way of with empty slot in adjacent intermodule The figure that example in the case of dress communication module group, toward road communication and circuit communication is illustrated.
Specific embodiment
Hereinafter, embodiments of the present invention are illustrated in order using accompanying drawing.Additionally, describing X-axis, Y-axis, Z In the figure of axle, X-axis, Y-axis and Z axis are mutually orthogonal.And, Z-direction represents vertical direction upward, and Y direction is represented The long side direction (from first end side towards the direction of the second end side) of base unit 10, X-direction represents base unit 10 Positive direction.
As shown in Figure 1 and Figure 2, base unit 10 have base station 11, tellite 12, connector 16A~ 16H etc..Base station 11 is formed as tabular by the resin etc. of insulator, and connector 16A is provided with tellite 12 ~16H, the connector is arranged on base station 11 in the way of upward.From first end (feelings in base unit 10 Under condition, the left end in Fig. 2) multiple conducts described later are set with for installing mould to the second end (in this case, the right-hand member in Fig. 2) Slot 13A~the 13H in the space of block.In addition, being respectively arranged with and being arranged at the modular connector of module in slot 13A~13H (reference marks 22C etc., Fig. 4) chimeric connector 16A~16H.
Each for slot 13A~13H, is separately provided for the module for supporting releasably to install on base station 11 Supporting the first mounting hole 14A~14H, the second mounting hole 15A~15H.For example by the mould of the input module 25 shown in Fig. 4 Block connector 25C is chimeric with the connector 16D of slot 13D, so as to turn into be mounted with input module 25 in slot 13D State.And, the first engagement pawl 25S of input module 25 is locked to the first mounting hole 14D and is fixed, input module 25 Second engagement pawl 25T is locked to the second mounting hole 15D and is fixed.
In addition, the slot for preparing first end is slot 13A as the special slot of such as power module 21 (reference picture 2). And, including slot in addition to the slot 13A of first end is that the communication zone 20 of slot 13B~13H is to include being provided with The region of the multiple slots of module for communicating with each other.In the communication zone 20, in the slot 13B including first end Slot 13B and slot 13C in CPU module described later 22 (equivalent to primary module) is installed, in communication zone 20, than peace The multiple slots of slot 13B and slot 13C equipped with CPU module 22 near the second end side be in slot 13C~13H extremely Secondary module described later is installed in a few slot.Additionally, CPU module 22 illustrated in showing present embodiment occupies 2 The example of slot.
As shown in Figure 3 and 4, module has power module 21, primary module (CPU module 22), secondary module 23 (communication mould Block 24, input module 25, output module 26 etc.), the module of multiple species is prepared with according to function.
Power module 21 is the module of the slot 13A of the first end being installed in the base unit 10 shown in Fig. 1, and being must The module of base unit 10 must be installed on.The outward appearance of power module 21 as shown in Figure 3 and 4, with a size for slot, And with modular connector 21C, the first engagement pawl 21S, the second engagement pawl 21T.Power module 21 is via modular connector 21C To the module of each module supply electric power in base unit 10.Additionally, power module 21 be neither primary module not yet It is the special module of secondary module.
CPU module 22 is installed in the list of the slot 13B including most leaning on first end side in the communication zone 20 shown in Fig. 1 Individual or multiple slots, are the modules that must be mounted to base unit 10.The CPU module 22 of present embodiment has occupies 2 The size of slot, so CPU module 22 is installed in slot 13B and slot 13C.The outward appearance of CPU module 22 such as Fig. 3 and figure Shown in 4, with 2 sizes of slot, and with 2 modular connector 22C, 2 the first engagement pawl 22S, 2 the second engagement pawl 22T.CPU module 22 is according to the program carried, for example, to proceed through LAN's via the communication module and miscellaneous equipment installed Communication, and obtain various input signals via the input module installed and judge order of regulation etc., and via being installed The module of output module output control signal.In addition, CPU module is equivalent to primary module.Primary module is included in regulation opportunity and opens The module begun from the function of the communication that information itself is transmitted to other modules (module installed in communication zone 20).
The internal ratio of communication zone 20 that communication module 24 is mounted to shown in Fig. 1 is provided with the slot of primary module near the second end The module of any one slot in multiple slots of side.Additionally, the module that communication module 24 is not required, is in work people Member is judged as being installed in the case of needing the module of base unit 10.The outward appearance of communication module 24 such as Fig. 3 and Fig. 4 institutes Show, with a size for slot, and with modular connector 24C, the first engagement pawl 24S, the second engagement pawl 24T.Communication mould Block 24 is, for example, to be used to connect LAN cables, and is communicated that (such as Ethernet (is registered with miscellaneous equipment be connected with the LAN Trade mark) communication) module.In addition, communication module 24 is equivalent to secondary module.Secondary module is to include into being about to by communicating from main mould The module of the function of the communication that the information that block or other secondary modules are received is transmitted to other secondary modules or primary module.
The internal ratio of communication zone 20 that input module 25 is mounted to shown in Fig. 1 is provided with the slot of primary module near the second end The module of any one slot in multiple slots of side.Additionally, the module that input module 25 is not required, is in work people Member is judged as being installed in the case of needing the module of base unit 10.The outward appearance of input module 25 such as Fig. 3 and Fig. 4 institutes Show, with a size for slot, and with modular connector 25C, the first engagement pawl 25S, the second engagement pawl 25T.Input mould Block 25 is, for example, to be used to be connected with various buttons, switch etc., is transfused to various input signals, and the input signal is passed to The module of CPU module 22.In addition, input module 25 is equivalent to above-mentioned secondary module.
The internal ratio of communication zone 20 that output module 26 is mounted to shown in Fig. 1 is provided with the slot of primary module near the second end The module of any one slot in multiple slots of side.Additionally, the module that output module 26 is not required, is in work people Member is judged as being installed in the case of needing the module of base unit 10.The outward appearance of output module 26 such as Fig. 3 and Fig. 4 institutes Show, with a size for slot, and with modular connector 26C, the first engagement pawl 26S, the second engagement pawl 26T.Output mould Block 26 is, for example, the module for being used to export the various control signals from CPU module 22.In addition, output module 26 is equivalent to above-mentioned Secondary module.
And, the internal ratio of communication zone 20 that secondary module is installed in shown in Fig. 1 is provided with the slot of primary module near second In at least one of multiple slots (being in the example in fig 1 slot 13D~slot 13H) of end side slot.In other words, The secondary module of selection at least one, the secondary module selected is installed in the internal ratio of communication zone 20 and is provided with the slot of primary module and is close to In any one in multiple slots at the second end side.Additionally, power module 21 and CPU module 22 (primary module) are required moulds Block, is installed in above-mentioned slot.
Example shown in Fig. 5 show to make connector 16A it is chimeric with modular connector 21C come in slot 13A (reference pictures 1) in install power module 21, and make connector 16B, 16C it is chimeric with modular connector 22C come slot 13B, 13C (ginseng According to Fig. 1) the middle appearance for installing CPU module 22.In addition it is shown that make connector 16D it is chimeric with modular connector 24C come insert The appearance of communication module 24 is installed in groove 13D (reference picture 1).In addition it is shown that making connector 16E and modular connector 25C It is fitted together to the appearance that input module 25 is installed in slot 13E (reference picture 1).In addition it is shown that making connector 16F and module Connector 26C is fitted together to the appearance that output module 26 is installed in slot 13F (reference picture 1).
The above-mentioned communication You Wang roads carried out by primary module and secondary module communicate and both communications of circuit communication, for example EtherCAT communications meet the communication.Toward road communication be since the primary module (CPU module 22) in the communication zone 20, Transmit the communication of information in order to the module of the second end side from the module of the first end side in communication zone 20. Toward road communication led to by [1-1] communication as the beginning communicated toward road, [1-2] in the example of Figure 11 and Figure 12 The module of letter, [1-3] communication from first end side transmits the communication of information to the module of the second end side in order.
Secondary module i.e. the second end module that circuit communication is mounted in communication zone 20 most by the second end side passes through past After road communication receives information, since second end module, from the module of the second end side in communication zone 20 The communication of information is transmitted in order to the module of first end side.In the example of Figure 11 and Figure 12, circuit communication is to pass through Communicated as [2-1] communication of the beginning of circuit communication, [2-2] communication, [2-3], from the module of the second end side to first The module of end side transmits the communication of information in order.Additionally, in the example of Figure 11 and Figure 12, installed in communication zone 20 Inside the secondary module (being in this case output module 26) most by the second end side will communicate by as [1-3] communicated toward road The information received from the module (being in this case input module 25) of first end side pass through to communicate toward road (in this case for [1-4] communicates) attempt transmission to the module of the second end side.And, the secondary module is detected in the past road communication attempted Do not respond to module is not installed in the second end side and be identified as above-mentioned detecting in (in this case be [1-4] communication) Secondary module itself is the second end module.Then, the second end module communicated as [2-1] of the beginning of circuit communication.This Outward, the detailed of the detection method of the second end module will be described later.
Fig. 6 and Fig. 7 show the distribution Ji Wang roads communications patching, above-mentioned for carrying out for carrying out above-mentioned past road communication Circuit communication distribution be circuit communication distribution and the pin being arranged in connector example.As shown in fig. 6, inserting Groove connector 16D, 16E have multiple pins (D1~D16, E1~E16), and each pin is by scolding tin etc. and tellite 12 Connection, so as to connector is arranged on tellite 12.In addition, past road communications patching and circuit communication distribution It is arranged in the connector 16B~16H in communication zone 20, most leaning on from the connector for being provided with primary module The connector (in the example of present embodiment be connector 16C) at the second end side is to the connector at the second end (being connector 16H in the example of present embodiment).
Additionally, in example shown in the present embodiment, each connector has from No. 1 pin to No. 16 pins this 16 pins.Herein, from the pin of upper left in the counterclockwise direction in order to the pin of upper right, setting is from No. 1 pin To No. 16 pins.For example in the figure 7, the pin of the upper left of connector 16D is set as No. 1 pin D1, by drawing for lower-left Pin is set as No. 8 pin D8, and the pin of bottom right is set as into No. 9 pin D9, and the pin of upper right is set as into No. 16 pin D16.
Herein, in the connector 16D of the example of Fig. 7, will be itself mounted at from relative to connector 16D The past road used when one end side and nearest module toward road by communicating and receiving information receives pin and is used as No. 1 pin D1 and 2 Number pin D2.In addition, in connector 16D, the second end side will be itself mounted to relative to connector 16D And nearest module by communicating payment information toward road when past the road payment pin that is used be used as No. 16 pin D16 and No. 15 are drawn Pin D15.In addition, in connector 16D, will from relative to connector 16D be itself mounted at first end side and The loop that nearest module is used when receiving information by circuit communication receives pin and is used as No. 14 pin D14 and No. 13 pins D13.In addition, in connector 16D, the second end side and most will be itself mounted to relative to connector 16D The loop payment pin that near module is used when paying information by circuit communication is used as No. 3 pin D3 and No. 4 pin D4.
Similarly, in the connector 16E of the example of Fig. 7, No. 1 pin E1 and No. 2 pin E2 is connect as toward road By pin, No. 16 pin E16 and No. 15 pin E15 are paid into pin as toward road.Similarly, in connector 16E, will No. 14 pin E14 and No. 13 pin E13 receive pin as loop, No. 3 pin E3 and No. 4 pin E4 are paid as loop and is drawn Pin.Similarly, in connector 16G, No. 1 pin G1 and No. 2 pin G2 is received into pin as toward road, by No. 16 pins G16 and No. 15 pin G15 pays pin as toward road.Similarly, in connector 16G, by No. 14 pin G14 and No. 13 Pin G13 receives pin as loop, and pin is paid using No. 3 pin G3 and No. 4 pin G4 as loop.
In addition, the connector 16C of the example in Fig. 7 (most leans on the second end in being provided with the connector of primary module The connector of side) in, by relative to connector 16C being itself mounted at the second end side and nearest module is led to Pin is paid as No. 16 pin C16 and No. 15 pin C15 in the past road used during passing road communication payment information.In addition, In connector 16C, by from being itself mounted at first end side relative to connector 16C and nearest module passes through The loop that circuit communication receives to be used during information receives pin as No. 14 pin C14 and No. 13 pin C13.
In addition, the connector 16H of the example in Fig. 7 is (most by the slot connection of the second end side in communication zone 20 Device) in, will receive from being itself mounted at first end side and nearest module relative to connector 16C and pass through to be communicated toward road The past road used during information receives pin as No. 1 pin H1 and No. 2 pin H2.In addition, in connector 16H, By to relative to connector 16H being itself mounted at the second end side and when nearest module pays information by circuit communication Pin is paid as No. 3 pin H3 and No. 4 pin H4 in the loop for being used.
Next, to being illustrated toward road communications patching.As shown in fig. 7, in the tellite 12 of base unit It is provided with toward road communications patching Acd, this is toward road communications patching Acd by connector 16C, 16D adjacent in communication zone 20 In the past road of connector 16C of first end side pay the slot that pin is No. 16 pin C16 and the second end side and connect Connect Qi16DWang roads and receive pin i.e. No. 1 pin D1 and couple together.In addition, be provided with tellite 12 toward road leading to Letter distribution Bcd, the past road payment pin of the connector 16C of first end side is No. 15 and drawn by this toward road communications patching Bcd The past road of the connector 16D of pin C15 and the second end side receives pin i.e. No. 2 pin D2 and couples together.
For similarly, for adjacent connector 16D, 16E, it is provided with tellite 12 toward road and is led to Letter distribution Ade, past road communications patching Bde.For similarly, for adjacent connector 16G, 16H, in printed circuit base Past road communications patching Agh, past road communications patching Bgh are provided with plate 12.
Next, being illustrated to circuit communication distribution.As shown in fig. 7, in the tellite 12 of base unit Circuit communication distribution Cgh is provided with, the circuit communication distribution Cgh is by connector 16H, 16G adjacent in communication zone 20 In the loop of connector 16H of the second end side pay the slot connection that pin is No. 3 pin H3 and first end side The loop of device 16G receives pin i.e. No. 14 pin G14 and couples together.In addition circuit communication is provided with tellite 12 It is No. 4 pins that pin is paid in the loop of the connector 16H of the second end side by distribution Dgh, the circuit communication distribution Dgh The loop of the connector 16G of H4 and first end side receives pin i.e. No. 13 pin G13 and couples together.
For similarly, for adjacent connector 16E, 16D, loop is provided with tellite 12 and is led to Letter distribution Cde, circuit communication distribution Dde.For similarly, for adjacent connector 16D, 16C, in printed circuit base Circuit communication distribution Ccd, circuit communication distribution Dcd are provided with plate 12.
Additionally, in tellite 12, such as No. 9 from the connector 16A for being provided with power module are drawn Pin A9 extends power supply wiring Hv, and power supply wiring Hv is connected with No. 9 pins of each connector.Therefore, installed in slot Module in connector is by from No. 9 pin supply electric powers (Vcc).In addition, in tellite, from being provided with power module Connector 16A in such as No. 8 pin A8 extend ground connection distribution Hg, the ground connection distribution Hg and each connector No. 8 pin connections.Therefore, the module in connector is using No. 8 current potentials of pin as reference potential (GND).
In addition, (being in this case slotting in the connector of the slot except being provided with primary module in communication zone 20 Groove connector 16B and connector 16C) and the connector of slot at the second end (be in this case connector In the connector (being in this case connector 16D~connector 16G) of the slot outside 16H), connect in each slot The vicinity for connecing device is provided with past road switch Da described later, Db, loop switch device Dc, Dd described later.
Next, using Fig. 8, to toward road switch Da, Db and loop switch device Dc, Dd, allocation position and connect into Row explanation.It is IC (integrated circuit) for example toward road switch Da, Db and loop switch device Dc, Dd, has used same IC.
As shown in figure 8, past road switch Da, Db and loop switch device Dc, Dd are to allow hand over off-state and short circuit The past path switching circuit and circuit switching circuit of state, with power input terminal V, input and output terminal S1, S2 and defeated Enter terminal EN.It is connected with power input terminal V as the power supply wiring Hv of the power supply supplied from power module.That is, toward road Switch Da, Db and loop switch device Dc, Dd are supplied from the power supply wiring Hv of the tellite for being arranged on base unit Power supply.
In addition, being arranged on tellite 12 by welding etc. toward road switch Da, Db and loop switch device Dc, Dd In the face with connector 16D opposition sides (that is, inboard) on.And, it is installed in No. 1 pin D1 toward road switch Da Between (receiving pin toward road) and No. 16 pin D16 (paying pin toward road), No. 2 pin D2 are installed in toward road switch Db Between (receiving pin toward road) and No. 15 pin D15 (paying pin toward road).In addition, loop switch device Dc is installed in No. 14 drawing Between pin D14 (loop receives pin) and No. 3 pin D3 (loop payment pin), loop switch device Dd is installed in No. 13 pins Between D13 (loop receives pin) and No. 4 pin D4 (loop payment pin).
It is defeated toward road switch Da, Db (toward path switching circuit) and loop switch device Dc, Dd (circuit switching circuit) Enter the current potential of terminal EN to turn into short-circuit condition in the case of Low level, and be High level in the current potential of input terminal EN In the case of turn into off-state switch.In addition, input terminal EN is connected via resistance R with GND (reference potential), also, example Such as it is connected with No. 12 pin D12.And, the input and output terminal S1 of past road switch Da is same to be connected with past road communications patching Acd No. 1 pin D1 connections, the input and output terminal S2 toward road switch Da is with No. 16 pins being connected with toward road communications patching Ade D16 is connected.Similarly, the input and output terminal S1 of past road switch Db is with No. 2 pin D2 for being connected with past road communications patching Bcd Connection, the input and output terminal S2 of past road switch Db is with No. 15 pin D15 connections for being connected with past road communications patching Bde.Together Sample ground, the input and output terminal S1 of loop switch device Dc is with No. 3 pin D3 connections for being connected with circuit communication distribution Ccd, loop The input and output terminal S2 of switch Dc is with No. 14 pin D14 connections for being connected with circuit communication distribution Cde.Similarly, loop The input and output terminal S1 of switch Dd is connected with No. 4 pin D4 for being connected with circuit communication distribution Dcd, loop switch device Dd's Input and output terminal S2 is with No. 13 pin D13 connections for being connected with circuit communication distribution Dde.
As shown in figure 9, No. 12 pin D12 are to be provided with module (in Fig. 9 in slot corresponding with connector 16D Example in be communication module 24) in the case of, by from the module supply electric power (Vcc) (equivalent to switching signal) installed Pin.In other words, in the case of being provided with module in connector, from No. 12 pin D12 to past road switch Da's The current potential of input terminal EN input electric powers (Vcc), input terminal EN is maintained High level, turns into toward path switching circuit and disconnects State.Therefore, in the example of figure 9, due to being provided with communication module 24, so making No. 1 pin D1 and No. 16 pin D16 break Open.
Therefore, the communication module 24 installed can be carried out via toward road communications patching Acd and No. 1 pin D1 from being arranged on First end side and nearest module receive the past road communication of information, and can carry out being communicated via No. 16 pin D16 and toward road Distribution Ade communicates to installed in the past road of the second end side and nearest module payment information.
In addition, as shown in Figure 10, in the case of not installing module in slot corresponding with connector 16D, to 12 Number pin D12 does not have any input.In this case, because the input terminal EN of past road switch Da is via resistance R and GND (reference potential) is connected, so current potential is maintained Low level, short-circuit condition is turned into toward path switching circuit.Therefore, Figure 10's In example, due to not installing module, so making No. 1 pin D1 and No. 16 pin D16 short circuits.Therefore, Shi Wang roads communications patching Acd It is short-circuit with toward road communications patching Ade.
Past road switch Db similarly, in the case of being provided with module in connector (reference picture 9), makes No. 2 Pin D2 and No. 15 pin D15 disconnect.Therefore, the communication module 24 installed can be carried out via past road communications patching Bcd and 2 Number pin D2 communicates from past the road for receiving information installed in first end side and nearest module, and can carry out drawing via No. 15 JiaoD15He Wang roads communications patching Bde communicates to installed in the past road of the second end side and nearest module payment information.In addition, In the case of module is not installed in connector (reference picture 10), make No. 2 pin D2 and No. 15 pin D15 short circuits, and make It is toward road communications patching Bcd and short-circuit toward road communications patching Bde.
Loop switch device Dc similarly, in the case of being provided with module in connector (reference picture 9), makes No. 14 Pin D14 and No. 3 pin D3 disconnect.Therefore, the communication module 24 installed can be carried out via circuit communication distribution Cde and 14 Number pin D14 can carry out drawing via No. 3 from installed in the second end side and nearest module receives the circuit communication of information Pin D3 and circuit communication distribution Ccd is to the circuit communication installed in first end side and nearest module payment information.In addition, In the case that module is not installed in connector (reference picture 10), make No. 14 pin D14 and No. 3 pin D3 short circuits, and make back Road communications patching Cde and circuit communication distribution Ccd short circuits.
Loop switch device Dd similarly, in the case of being provided with module in connector (reference picture 9), makes No. 13 Pin D13 and No. 4 pin D4 disconnect.Therefore, the communication module 24 installed can be carried out via circuit communication distribution Dde and 13 Number pin D13 can carry out drawing via No. 4 from installed in the second end side and nearest module receives the circuit communication of information Pin D4 and circuit communication distribution Dcd is to the circuit communication installed in first end side and nearest module payment information.In addition, In the case that module is not installed in connector (reference picture 10), make No. 13 pin D13 and No. 4 pin D4 short circuits, and make back Road communications patching Dde and circuit communication distribution Dcd short circuits.
CPU module 22 is installed in slot 13B, 13C that the example of Figure 11 shows in communication zone 20, in slot 13D In communication module 24 is installed, input module 25 is installed in slot 13E, output module 26 is installed in slot 13F The example of Programmable Logic Controller 1.The example of Figure 11 shows most to install CPU module 22 by first end side in communication zone 20 (primary module), and the example in the case where each intermodule is formed without sky slot (in the case of filling up first end side).
In this case, to [1-1] of communication module 24 communications, entering in order by since CPU module 22 toward road communication [1-2] of the row from communication module 24 to input module communicates, is communicated from input module 25 to [1-3] of output module 26.By This, in the module in communication zone 20, passes in order from the module of first end side to the module of the second end side Deliver letters breath.And, output module 26 is gone out without communication object (in the example of Figure 11, due to inserting by [1-4] communication check Groove 13G is sky slot, so being bypassed as shown in Figure 10), and it itself is the second end module to be identified as.Additionally, for pair Module judge itself whether be most by the second end side module above-mentioned [1-4] communication both can conduct as described above Carried out toward one of road communication, it is also possible to carried out on the appropriate opportunity different from past road communication.Can also for example on startup only Carry out once.
Herein, being described in detail come the detection method to the second end module using Figure 13, Figure 14.Figure 13, Figure 14 show The internal structure (with toward road communication and the relevant structure of circuit communication) of the input module 25 gone out in Figure 11, output module 26 it is interior Portion's structure (structure relevant with past road communication and circuit communication), past road communications patching Ade, Aef, Afg, Agh, circuit communication are matched somebody with somebody The schematic diagram of line Cgh, Cfg, Cef, Cde.
As shown in Figure 13, Figure 14, input module 25 has modular connector 25C, physical layer 25E, 25J, communication controler 25F (such as EtherCAT controllers), loopback control unit 25G, 25H etc..Physical layer 25E, 25J is by communication controler 25F treatment Digital data converting for serial data and to outside send, the converting serial data that will be received externally be numerical data simultaneously Consign to communication controler 25F.Loopback control unit 25G, 25H be for example turned into by communication controler 25F off-state or The switch of short-circuit condition.Communication controler 25F is carried out toward road communication and circuit communication via physical layer 25E, 25J.Additionally, output Module 26 similarly has modular connector 26C, physical layer 26E, 26J, communication controler 26F, loopback control unit 26G, 26H Deng.
As shown in figure 13, the communication controler 25F being mounted on input module 25 is carrying the input module 25 of itself During the payment of the information for carrying out that communicated during startup or by past road, the module of the second end side is performed via physical layer 25J Connection confirms to be communicated with the transmission of the data of (detection is used) or as [1-3] communicated toward road.Physical layer 25J is returning The data that will be responded in the case of response consign to communication controler 25F, and in the case of being responded not returning will with do not have The data for having response relevant consign to communication controler 25F.And, communication controler 25F is returned from circuit communication distribution etc. Come (being to return to respond from output module 26 in the case of Figure 13) in the case of responding, it is judged to that carrying the module of itself is not Second end module.Communication controler 25F makes in the case where being judged to that carrying the input module 25 of itself is not the second end module The switch of loopback control unit 25G, 25H turns into off-state.Thus, communicated via physics by as [1-2] communicated toward road The information that layer 25E is received by communication controler 25F is directed to physical layer 25J (reference pictures 13 by loopback control unit 25G, 25H In (A)), and paid to next module from physical layer 25J.So, communication controler 25F is by as past road communication [1-2] communication receives information via past road communications patching Ade, connector 16E, modular connector 25C, physical layer 25E. And the information that communication controler 25F will be received communicates by as [1-3] communicated toward road, via physical layer 25J, mould Block connector 25C, connector 16E, the module of the second end side is consigned to toward road communications patching Aef (in this case for defeated Go out module 26).
In addition, as shown in figure 13, the communication controler 26F being mounted on output module 26 is carrying the output module of itself When during 26 startup or by the handing-over of the information for carrying out that communicates toward road, via physical layer 26J to the module of the second end side Connection is performed to confirm to be communicated (in reference picture 13 with the transmission of the data of (detection is used) or as [1-4] communicated toward road (1)).The data that physical layer 26J will be responded returning in the case of responding consign to communication controler 26F, and are not returning Return the data ((2) in reference picture 13) relevant with not responding to are consigned into communication controler 26F in the case of response.And And, communication controler 26F is not being returned come (next not return in the case of Figure 13 in the case of responding from circuit communication distribution etc. Response), it is judged to that it is the second end module to carry the module of itself.Communication controler 26F is being judged to carry the output mould of itself In the case that block 26 is the second end module, for example making the switch of loopback control unit 26G turns into off-state, and makes loopback control unit The switch of 26H turns into short-circuit condition ((3) in reference picture 13).Thus, by as toward road communicate [1-3] communicate via The information that physical layer 26E is received by communication controler 26F goes back to physical layer 26E (in reference picture 13 by loopback control unit 26H (B)), and via physical layer 26E perform as circuit communication [2-1] communicate.So, communication controler 26F is by being used as Toward [1-3] communication of road communication, via past road communications patching Aef, connector 16F, modular connector 26C, physical layer 26E receives information.And, the information that communication controler 26F will be received is communicated by [2-1] as circuit communication, via Physical layer 26E, modular connector 26C, connector 16F, circuit communication distribution Cef consign to the module of first end side (being in this case input module 25).
Additionally, Figure 14 shows that [2-1] as circuit communication and then since output module 26 communicates, by defeated Enter module 25 and perform the appearance communicated as [2-2] of circuit communication.Due to the communication controler being mounted on input module 25 25F is judged to that it is not the second end module to carry the input module 25 of itself, so make the switch of loopback control unit 25G, 25H turning into Off-state.Thus, communicate what is received by communication controler 25F via physical layer 25J by [2-1] as circuit communication Information is directed to physical layer 25E ((C) in reference picture 14) by loopback control unit 25H, 25G, and from physical layer 25E to next Individual module handing-over.So, communication controler 25F is communicated by [2-1] as circuit communication, via circuit communication distribution Cef, connector 16E, modular connector 25C, physical layer 25J receive information.And, communication controler 25F will be received Information by as circuit communication [2-2] communicate, via physical layer 25E, modular connector 25C, connector 16E, Circuit communication distribution Cde consigns to the module of first end side.
As described above, the output module 26 for being identified as the second end module starts circuit communication, carries out in order from certainly Body communicates to [2-1] of input module 25, from input module 25 to [2-2] of communication module 24 communication, from communication module 24 Communicated to [2-3] of CPU module 22.Thus, in the module in communication zone 20, from the module of the second end side Information is transmitted in order to the module of first end side.
CPU module 22 is installed in slot 13B, 13C that the example of Figure 12 shows in communication zone 20, in slot 13D In communication module 24 is installed, input module 25, slot 13F are installed in slot 13E are empty slot, pacify in slot 13G The example of the Programmable Logic Controller 1A equipped with output module 26.The example of Figure 12 is shown in communication zone 20, most by first End side install CPU module 22 (primary module), any one intermodule formed be free slot (in this case, input mould Between block 25 and output module 26 formed be free slot) in the case of example.Additionally, in the past, as shown in figure 16, the empty slot in interval Output module 126 neither carry out being communicated toward road nor carry out circuit communication, but in the present embodiment, the empty slot in interval it is defeated Going out module 26 had suitably both carried out being also carried out circuit communication toward road communication.
In this case, to [1-1] of communication module 24 communications, entering in order by since CPU module 22 toward road communication [1-2] of the row from communication module 24 to input module communicates, is communicated from input module 25 to [1-3] of output module 26. In as the slot 13F of empty slot, as shown in Figure 10, Shi Wang roads communications patching short circuit, so carrying out [1-3] communication.Thus, In the module in communication zone 20, even if formed being free slot in intermodule, also from the module of first end side to The module at the second end side transmits information in order.And, output module 26 gone out by [1-4] communication check do not communicate it is right As, and it itself is the second end module to be identified as.
And, the output module 26 for being identified as the second end module starts circuit communication, carries out in order from itself to defeated Enter module 25 [2-1] communication, from input module 25 to [2-2] of communication module 24 communication, from communication module 24 to CPU moulds [2-3] communication of block 22.In the slot 13F as empty slot, as shown in Figure 10, make the short circuit of circuit communication distribution, so entering Row [2-1] communication.Thus, in the module in communication zone 20, even if intermodule is formed free slot, also from the The module at two ends side transmits information in order to the module of first end side.
In the Programmable Logic Controller 1,1A illustrated by present embodiment, the past road communications patching Acd- shown in Fig. 7 Ade-Aef-Afg-Agh, toward road communications patching Bcd-Bde-Bef-Bfg-Bgh it is in on tellite 12 The pin of the selected connector of mode for linearly setting.Similarly, the circuit communication distribution Ccd-Cde- shown in Fig. 7 Cef-Cfg-Cgh, circuit communication distribution Dcd-Dde-Def-Dfg-Dgh are with linearly on tellite 12 The pin of the selected connector of mode that ground is set.In addition, toward road switch Da, Db be installed in toward road receive pin with it is past Road is paid between pin, and loop switch device Dc, Dd are installed in loop and receive between pin and loop payment pin.
Therefore, as shown in fig. 7, the path communicated from No. 16 pin C16 Qi Wang roads of connector 16C is to lead to toward road Letter distribution Acd- (is inserted toward road switch Ea- toward road communications patching Ade- toward road switch Da- toward road communications patching Aef- The past road switch of groove connector 16F)-toward road communications patching Afg- toward road switch Ga- toward road communications patching Agh, and into For linear.Similarly, the path for being communicated from No. 15 pin C15 Qi Wang roads of connector 16C is toward road communications patching Toward road switch Db-, toward road communications patching Bde-, toward road switch Eb-, toward road communications patching Bef-, (slot is connected Bcd- Qi16FWang roads switch)-toward road communications patching Bfg- toward road switch Gb- toward road communications patching Bgh, and as straight line Shape.
Similarly, it is circuit communication distribution to No. 14 paths of the circuit communication of pin C14 of connector 16C (slot is connected Ccd- loop switch device Dc- circuit communication distribution Cde- loop switch device Ec- circuit communication distributions Cef- The loop switch device of device 16F)-circuit communication distribution Cfg- loop switch device Gc- circuit communication distribution Cgh, and as straight line Shape.Similarly, it is circuit communication distribution Dcd- loops to No. 13 paths of the circuit communication of pin C13 of connector 16C (connector 16F's returns switch Dd- circuit communication distribution Dde- loop switch device Ed- circuit communication distributions Def- Road switch)-circuit communication distribution Dfg- loop switch device Gd- circuit communication distribution Dgh, and as linear.
Therefore, it is entirely linear, also, nearly equal length toward the path of road communication, the path of circuit communication.Match somebody with somebody in communication In the case of situation, the length of the communications patching arranged side by side difference of line bending, the reflection of signal is easily produced, and easily become and make an uproar The key factor of sound.However, in the Programmable Logic Controller of present embodiment, the important of communications patching bending is made by that will turn into The on-off circuit (toward road switch, loop switch device) of factor be configured on the face of the opposition side of tellite (and configuration Between pin and pin), the linearization(-sation) of communications patching can be simply completed.Influence therefore, it is possible to avoid noise etc. comes Carry out the communication of reliability Geng Gaowang roads and circuit communication.
Programmable Logic Controller of the invention 1,1A is not limited to structure, composition, outward appearance, shape illustrated by present embodiment Deng, can carry out various changes, it is additional, delete.The quantity of the slot of such as base unit, species of module etc. are not limited to this Illustrated by implementation method.
In addition, in the present embodiment, illustrate to have compiling for 2 Tiao Wang roads communications patchings and 2 circuit communication distributions The example of range controller, but it is also possible to be the Programmable Logic Controller with 1 Tiao Wang roads communications patching and 1 circuit communication distribution.
In description of the present embodiment, as using the example communicated with the communication of circuit communication toward road, use EtherCAT communications are illustrated, but are not limited to EtherCAT communications, and the present invention can be applied to use with past The various Programmable Logic Controllers that road communicates with the communication of circuit communication.

Claims (4)

1. a kind of Programmable Logic Controller, it is characterised in that possess：
Base unit, the slot in multiple spaces as installing module is set with from lateral second end of first end one side； And
Module, is installed in above-mentioned slot,
Be provided with each above-mentioned slot be arranged on above-mentioned module in the chimeric connector of modular connector, and lead to Cross that above-mentioned modular connector is chimeric with above-mentioned connector to install above-mentioned module in above-mentioned slot,
Above-mentioned module has primary module and secondary module, and the primary module includes starting from itself to other above-mentioned moulds according to rule opportunity machine The function of the communication of block, the secondary module carries out the function of the communication to other above-mentioned modules including receiving information by communication,
Most by installing above-mentioned in the single or multiple above-mentioned slot of the above-mentioned slot of first end side in including communication zone Primary module, the communication zone is the region of the multiple above-mentioned slot for including being provided with the above-mentioned module for carrying out above-mentioned communication,
The multiple above-mentioned slot of the above-mentioned slot near the second end side of above-mentioned primary module is installed in above-mentioned communication zone internal ratio At least one of above-mentioned secondary module is installed in above-mentioned slot,
Above-mentioned communication You Wang roads communication and circuit communication, this communicates from above-mentioned main mould BOB(beginning of block) toward road, from the upper of first end side State module and transmit above- mentioned information in order to the above-mentioned module of the second end side, the circuit communication is mounted in and most leans on the second end one The above-mentioned secondary module of side be the second end module by it is above-mentioned communicated toward road receive above- mentioned information after, opened from above-mentioned second end module Begin, state primary module on the side from the second end one and transmit above- mentioned information in order,
Installed in the above-mentioned module for most leaning on the above-mentioned secondary module of the second end side to be communicated from first end side by above-mentioned past road The above- mentioned information for receiving is detected second when communicating and attempt transmission to the above-mentioned module of the second end side by above-mentioned past road It is above-mentioned second end module that end side is not installed above-mentioned module and is identified as above-mentioned secondary module itself,
It is provided with said base unit toward road communications patching and circuit communication distribution, this is used for toward road communications patching will be above-mentioned The above-mentioned connector of the first end side in communication zone in adjacent above-mentioned connector and the second end side it is upper It is above-mentioned toward road communication to carry out to state connector connection, and the circuit communication distribution is used for will be adjacent in above-mentioned communication zone The above-mentioned connector connection for stating the above-mentioned connector and first end side of the second end side in connector comes Above-mentioned circuit communication is carried out,
Slot in above-mentioned communication zone and except being provided with the above-mentioned slot of above-mentioned primary module and the above-mentioned slot at the second end Outside above-mentioned slot be middle slot, be provided with toward road switch and loop in the vicinity of each above-mentioned connector and cut Parallel operation,
It is above-mentioned above-mentioned module is installed in above-mentioned slot toward road switch in the case of, make the above-mentioned past of above-mentioned first end side The above-mentioned past road communications patching of road communications patching and above-mentioned second end side is electrically disconnected, and above-mentioned mould is not installed in above-mentioned slot In the case of block, the above-mentioned of above-mentioned first end side is set to match somebody with somebody toward road communication toward road communications patching and the above-mentioned of above-mentioned second end side Line electrical short,
In the case that above-mentioned loop switch device is provided with above-mentioned module in above-mentioned slot, make above-mentioned time of above-mentioned second end side The above-mentioned circuit communication distribution of road communications patching and above-mentioned first end side is electrically disconnected, and above-mentioned mould is not installed in above-mentioned slot In the case of block, match somebody with somebody the above-mentioned circuit communication distribution of above-mentioned second end side and the above-mentioned circuit communication of above-mentioned first end side Line electrical short.
2. Programmable Logic Controller according to claim 1, it is characterised in that
In above-mentioned middle slot, each above-mentioned connector has multiple pins, with it is above-mentioned communicated toward road in phase Receive for the past road that the communication that above-mentioned connector is itself mounted at first end side and nearest above-mentioned module is used Pin, it is above-mentioned toward road communication in be itself mounted at the second end side and nearest above-mentioned mould relative to above-mentioned connector What the communication of block was used pays pin, is itself mounted at relative to above-mentioned connector in above-mentioned circuit communication toward road The loop that the communication of the second end side and nearest above-mentioned module is used receive pin and in above-mentioned circuit communication with phase Paid for the loop that the communication that above-mentioned connector is itself mounted at first end side and nearest above-mentioned module is used Pin,
The above-mentioned slot of the second end side is most leaned in the above-mentioned slot for be provided with above-mentioned primary module in above-mentioned communication zone Above-mentioned connector has multiple pins, and pin is received toward road payment pin and above-mentioned loop with above-mentioned,
In above-mentioned communication zone, the above-mentioned connector of the above-mentioned slot at the second end has multiple pins, with above-mentioned past Road receives pin and pin is paid in above-mentioned loop,
Receive to be connected with the above-mentioned toward road communications patching of first end side on pin toward road above-mentioned,
The above-mentioned toward road communications patching of the second end side is connected with pin in above-mentioned payment toward road,
Receive to be connected with the above-mentioned circuit communication distribution of the second end side on pin in above-mentioned loop,
The above-mentioned circuit communication distribution that first end side is connected with pin is paid in above-mentioned loop,
It is above-mentioned to receive pin toward road and above-mentioned toward the connection of road payment pin and the peace in above-mentioned slot with above-mentioned toward road switch In the case of equipped with above-mentioned module, make it is above-mentioned toward road receive pin and it is above-mentioned to pay pin toward road electrically disconnected, and in above-mentioned slot In the case that above-mentioned module is not installed, above-mentioned past road is set to receive pin and above-mentioned toward road payment pin electrical short,
Above-mentioned loop switch device is receiving pin and the connection of above-mentioned loop payment pin and the peace in above-mentioned slot with above-mentioned loop In the case of equipped with above-mentioned module, above-mentioned loop is received pin and above-mentioned loop, to pay pin electrically disconnected, and in above-mentioned slot In above-mentioned module is not installed in the case of, above-mentioned loop is received pin and above-mentioned loop and pay pin electrical short.
3. the Programmable Logic Controller according to claims 1 or 2, it is characterised in that
Above-mentioned past road switch is the past path switching circuit for allowing hand over off-state and short-circuit condition,
Above-mentioned loop switch device is the circuit switching circuit for allowing hand over off-state and short-circuit condition,
It is above-mentioned to be fed with power supply from said base unit respectively toward path switching circuit and above-mentioned circuit switching circuit, right with itself The above-mentioned slot answered is input into switching signal in the case of being provided with above-mentioned module from mounted above-mentioned module, and right with itself The above-mentioned slot answered is not input into above-mentioned switching signal in the case of not installing above-mentioned module,
It is above-mentioned toward path switching circuit and above-mentioned circuit switching circuit in the case where above-mentioned switching signal is transfused to, make as object Distribution or pin it is electrically disconnected, and in the case where above-mentioned switching signal is not transfused to, make as object distribution or draw Pin electrical short.
4. Programmable Logic Controller according to claim 3, it is characterised in that
It is above-mentioned to be installed in and be arranged at said base toward path switching circuit, above-mentioned circuit switching circuit and above-mentioned connector On the tellite of unit,
Each it is above-mentioned toward road communications patching and each above-mentioned circuit communication distribution on above-mentioned tellite linearly Set,
It is above-mentioned be installed in above-mentioned tellite toward path switching circuit in the face of above-mentioned connector opposition side and First end side it is above-mentioned toward between road communications patching and the above-mentioned communications patching toward road of the second end side,
Above-mentioned circuit switching circuit be installed in above-mentioned tellite with the face of above-mentioned connector opposition side and Between the above-mentioned circuit communication distribution at the second end side and the above-mentioned circuit communication distribution of first end side.
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US20170097664A1 (en) 2017-04-06
DE102016118099A1 (en) 2017-04-06
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JP6724327B2 (en) 2020-07-15
US9804641B2 (en) 2017-10-31

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